Which is a very high level of carbon dioxide in the arterial blood?
A) cyanosis
B) hypoxemia
C) hypercapnia
D) carboxyhemoglobin
C
Explanation: A) Cyanosis refers to the bluish skin color that results from a high level of carbon dioxide.
B) Hypoxemia is a low level of oxygen in the blood.
C) Correct! Capn/o- means "carbon dioxide."
D) Carboxyhemoglobin refers to carbon monoxide, not carbon dioxide.
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